Error 8000401a - Windows Live Messenger 2009 (14.0.8050.1202)

Hi all,
can you help me with the last build of WLM 2009 (14.0.8050.1202)?
After installation, when I try to login Live Messenger shows me the
error *8000401a* "-Signing in to Windows Live Messenger failed because
the service is temporarily unavailable. Please try again later-."
I'm using -Windows XP Professional-, I don't have any firewall and my
Antivirus is -Eset NOD32-; I have a wireless connection and WLM 2009
works fine on another pc connected to the same router.
I 've done everything, I renstalled it, repaired it, I cleaned registry
and I tried logging in with 3 different accounts. I've also deleted
"-Windows Live Contacts-" and "-Messenger Cache-" folders: I still get
that error.

Can you help me with this problem? I would really appreciate it.

Regards

Ugo S.


--
Ugosan

I'm getting the same problem.
I have full access to the internet (everything else is working)
Before installing this update messenger worked every time with no problems.
I don't believe this problem is with my PC. Its a messenger problem.

There are lots of people having this problem and yet we still have no fix.

Get your finger out MS